Wringer



June 27, 1933.

E. ENGEL 1,916,159

WRINGER Filed Dec. 2, 1931 2 Sheets-Sheet 1 INVENTOR.

Edward Inge! ATTORNEY5' June 27, 1933. ENGEL 1,916,159

WRINGER Filed Dec. 2, 1951 2 SheetsSheet 2 INVENTOR.

Edward Faye! ATTORNE Y5 Fig. 7

Patented June 27,, 1933.-

anwean nlvsnn,

F BLOOMINGTON, ILLINOIS, ASSIGNOR TO MULLINS EANUFACTUB- ING CORPORATION, OF SALEM, OHIO, A CORPORATION OF NEW YORK wnmeaa Application filed December 2, 1931. Serial No. 578,452.

The object of my invention is to provide an improved wringer structure of the type wherein the pressure spring (or springs) for urging the upper roller toward the lower roller, is mounted within the cross-head, and the cross-head is locked to or unlocked fromthe base by an oscillating locking cam.

The accompanying drawings illustrate embodiments of my invention in convenient form for household use.

Fig. 1 is a side elevation in half vertical axial section of one form of my invention wherein the interlocking between the base and cross-head is obtained by a single medial camshaft, and two leaf springs are provided in the cross-head for action upon the bearing blocks of the upper roller;

Fig. 2 is a plan in partial horizontal section of the form shown in Fig. 1;

Fig. 3 is an end elevation in partial vertical section of the form shown in Figs. 1 and 2;

Fig. 4 is a fragmentary view of the interlocking cams shown inthe preceding figures;

Fig. 5 is a side elevation in half vertical axial section of another form of my invent1on wherein two parallel interlocking cam systems are provided between the base and cross-head, the construction being such that the cross-head may hingeupon either cam system when the other is released Fig. 6 is a plan in partial horizontal section of the form shown in Fig. 5;

Fig. 7 is an end elevation in partial vertical setgion of the forms shown in Figs. 5 and 6, an

Fig. 8 is a fragmentary view similar to showing a slight modification.

Referring to Figs. 1 to 4, inclusive, the base is conveniently formed of sheet metal and comprises the hollow end standards '10, side aprons 11, 11, drain guards 12, 12, at each end of each apron, and an intermediate trough 13 between the aprons 11, 11.

Each of the end standards is open at its upper end and is formed, in a well-known manner, to receive and support a bearing block 14 for the lower roller 15 and to receive and guide a bearing block 16 for the upper roller 17.

Secured to the inner face of the end wall of each end standard 10, and projecting above is a plate 20 provided, at its upper end with a cam slot 21'which, at its lower end, is in the form of a partially cylindrical perforation 22 having an arcuate extent of approximately 240degrees or thereabouts, flanked at its upper end by an overhanging lip 23, the top edge 24 of which inclines outwardly and upwardly. The lower end of the arcuateperforation 22 deploys into an outthe same,

.wardly and upwardly inclined edge 25 and the mouth formed by the two diverging edges 24 and 25, at the upper end of plate 20, has a width about equal to the diameter of perforation 22.

Associable with the upper ends of the standards 10, 10 is a cross-head 30, conveniently formed of sheet metal and so shaped and sized as to slightly sleeve freely over the upper ends of the end standards.

Journaled medially lengthwise in crosshead is a cam shaft 31 which, near each end, within the cross-head, is provided with a segmental annular cam portion 32, the an gular extent of which is about 180 degrees. The larger radius of this annular segment is such as to fit the perforation 22 and the thickness of the segment is such that, b

rotation of the segment, it may pass throng the throat, in groove 21, between edge 25 and lip" 23. Secured to shaft 31 is an operating lever 33 projected to a point within easy reach of the operator. It will be readily understood that this lever may assume any one of a considerable number of forms without. departing from m invention.

Threaded through the mlddle of cross head 30 is a pin 35 which forms an adjustable abutment for the ressure springs. A reduced shank 36, of pin v35, is journaled in a plate 37 and the pin is axially interlocked with this plate by the upset head 38. Secured to.'plate 37 is a C-shaped cli 39 which, at its opposite ends receives an supports the two leaf springs 40, 40, each of which at each end, rests upon a cross bar 43 lying upon the upper end of the adjacent bearing block 16. Each bearing block 16 lies between a pair of plates 44 suspended in cross-head plates at its lower end is provided with an inwardly projecting finger 44' which limits downward movement of block 16 under the action of the springs 40.

- Assuming the parts to be in the positions indicated in Figs. 1 to 4 inclusive, cross-head is vertically interlocked with the base, the cam segments 32 lying in slots 21 beneath lips 23. Upward movement of the outer end of lever 33 will produce counter clockwise rotation of segment 32 (Fig. 4) and the pressure of springs 43 will thereupon cause the cross-head to rise, the interior of segment 32 nesting over lip 23, and when there has been a comparatively slight movement a component of the spring force, on the cam segments, produces continued rotation of the cam segments and the cams are ejected from the mouth of the slot 21, thereby relieving the upper roller 17 from spring pressure.

The parts are so proportioned that when bearing blocks 16 rest upon lips 44' cam segments 32 may lie in the mouths of slots 21 in such position that initial downward movement of lever 33 will swing the lower ends of the cam segments beneath lips 23 and continued manual manipulation of lever 33 downwardly will swing the cam segments to the position shown in Fig. 4, thereby drawing the cross-head downwardly, stressing springs and vertically interlocking the cross-head with the base.

Referring now to Figs. 5 and 7 inclusive. The base is of the same general character as in the form shown in the preceding figures, and its parts are similarly designated. In this form the end standards 10, instead of bein provided with cam plates 20, have secure to the inner face of each vertical side wall a plate having a laterally-projecting car 51, and journaled in each side pair of these ears 51 are the ends 52 of a U-shaped lever 53. Non-rotatively secured to the outer end of each portion 52 is a segmental annular cam flange 54 having an angular extent of about 160 degrees. The cross-head 60, conveniently formed of sheet metal and bridging across the upper ends of the end standards 10, is formed, conveniently, at each end with lateral hollow'ears within each of which is secured a plate 61 bent at one end to form a segmental finger 62, arranged to be overlaid by the adjacent segmental cam 54.

Threaded medially through the top wall of cross-head 60 is an adjustable spring abutment pin 65 the inner end of which rests in a shallow pocket 66 at the middle of the leaf spring 67, the ends of which overlie projections 68 secured to the inner faces of the end walls of the cross-head. Spring 67 at its opposite ends isso formed, as indicated at 69, as to engage the upper end of the adjacent bearing block 16 of the upper roller 17.

With the parts in the positions shown in Flgs. 5 to 7 inclusive, the segmental cams 54 which are anchored on the base, overlie the adjacent pins 62 which are carried by the cross-head so that the crosshead is thus vertically interlocked with the base and upward movement of the crosshead, under the influence of spring 67, is prevented. Movement of either one of levers 53 downwardly, from the position shown in Fig. 7, will shift its cam segments 54 to withdraw the upper ends of said cam segments from above the segmental pins 62. The angular movement of lever 53 necessary for this action is slight and immediately the released pins 62 are driven upwardly, under the influence of spring 67, the cross-head hinging upon the other pair of segmental pins 62 beneath their associated segmental cams 54.

To restress the spring 67, the released side of cross-head 60 is swung upwardly (the pins 62 at the other side of the cross-head pivoting beneath the adjacent segments 54) until the projections 62 are carried above the path of movement of segments 54. Thereupon the lever 53 at the released side of the cross-head is swung upwardly, its cam segments 54 passing beneath projections 62, until the normally lower ends of segments 54 are carried to positions in a plane between the adjacent projection 62 and the medial plane of the wringer. Thereupon the released side of the crosshead may be lowered until projections 62 lie below the then uppermost ends of cam segments 54 (lowermost in Fig. 7), whereupon, by a downward swing of lever 53, the cam segments 54 may be caused to ride over the adj acent projections 62 and the parts returned to the positions shown in Fig. 7.

In order to remove the cross-head 60 from the base, both levers 53 are depressed to shift their cam segments 54 from positions overriding the adjacent projections 62, where- .upon the cross-head may be lifted bodily from the base.

In the modification shown in Fig. 8 the journaled portion 52 of lever 53, instead of being provided with a segmental annular cam 54, is provided at its inner end with a diametrically arranged plate 75. Secured within the cross-head 60 is a C- haped plate 76 with which plates coact, to draw the cross-head downwardly and interlock it with the base. Movement of lever 53' (Fig. 8) in a counter clockwise-direction will swing the lower end of plate 75 free from the lower end of plate 76, thereby releasing the cross-head from spring pressure. The released side of the cross-head may then be swung upwardly to a position above plate 75, whereupon the released lever 53 may be swung in a clockwise direction to a position bringing the lower edge of plate 75 uppermost. Thereupon the released side of the cross-head may be dropped to bring the adjacent'tip of plate 76 below the then uppermost edge of plate 75 and lever 53 may then (as shown in Fig. 8), 1

be swung down to the position shown in full 1 having end standards,

lines in Fig. 8, the plate 75 camming on the inner surface of the ii-shaped plate 76 and drawing the cross-head down to operative position. In this form, when one side of the cross-head is released the cross-head pivots or hinges about the lower edges of the plates 7 5 at the opposite side of the wringer and the cross-head is thus retained partially connected. to the base.

i claim as my invention:

1. A wringer comprising, a base member having end standards, a hollow cross-head bridging said standards, a cam shaft journaled in the cross head and provided within the cross-head with two segmental camming elements, two cam elements carried by the base member and positioned and formed for co-active relation with said camming elements within the cross-head for releasable vertical interlocking co-relation with the shaft cams, and means accessible from the exterior of the cross-head by which the cam shaft may be oscillated. i

2. A wringer comprising, a base member a cross-head bridging said standards, a cam shaft journaled in one of said members longitudinally thereof and provided within the length of the cross-head with two segmental camming elements, two cam elements carried by the other member and positioned and formed for coactive relation with the shaft cams within the length of the cross-head for releasable vertically interlocking co-relation with the shaft cams,

and a leaf-spring mounted in the cross-head with its ends arranged to resist upward movement of the upper roll of the wringer when the crossrhead is vertically interlocked with the base.

3. A wringer comprising, a base member having end standards, a hollow cross-head member bridging said end standards, a lock shaft journaled lengthwise in said crosshead, separable interlocking cam means carried respectively by the base member and said shaft near each end of said member and within the interior-of the cross-head member when the cross-head and base are interlocked,

and spring means mounted within the cross-.

head member and yieldably engageable with bearings at opposite ends of an upper roller;

A Wringer comprising, a base member; having end standards, a cross-head member bridging said end.standards, a lock shaft .journaled lengthwise insaid cross-head, in-

terlocking cam means carried respectively by the base member and said shaft near each end of said membersand within the crosshead member, and two parallel leaf springs mounted within the cross-head upon opposite sides of theshaft.

5. A wringer comprising a base member having end standards, a cross-head member bridging said end standards, a lock' shaft journaled lengthwise in said cross-head, interlocking cam means carried respectively by the base member and said shaft near each end of said members, and two parallel leaf springs mounted within the cross-head upon opposite sides of the shaft.

6. As an article of manufacture, a wringer cross-head comprising a hollow main body, a lock shaft journaled medially lengthwise in said cross-head, and two parallel leaf springs mounted within the cross-head, one upon each side of said lock shaft.

7. As an article of manufacture, a wringer cross-head comprising a hollow main body, a lock shaft journaled lengthwise within said main body, bearing-receiving elements suspended in the main body at each end, anda pair of parallel leaf springs mounted within the main body, one on each side of said shaft with their ends projected to positions to form yielding abutments against upward movement of bearing blocks associated with said bearing receiving elements.

8. A wringer comprising a base member having end standards, a cross-head member bridging said end standards, two loch shafts arranged on opposite sides of the medial vertical plane of the base and journaled in one of said members, vertically interlockable carnming means carried by each of said shafts and by the memberupon which the cooperativeshaftis not journaled, and spring means carried by the cross-head and arranged to form yielding abutments against the bearings of an upper roller.

9. A wringer comprising a base member having end standards, two lock shafts journaled upon said end standards at opposite sides of the medial vertical plane of the base, vertically interlockable cam means carried by said lock shafts and cross-head, and spring means mounted in the cross-head to form yielding abutments against upward movement of bearings of an upper roller.

10. A wringer comprising a base member having end standards, two lock shafts journaledupon said end standards at opposite sides of the medial vertical plane of the base,

vertically interlockable cam means carried by said lock shafts and cross head, and a leaf spring mounted lengthwise within the cross head with its ends in position to form yielding abutments against upward movement of beerin s of an upper roller.

11. wringercomprising a base member having end standards, a cross-head member bridging said end standards, two lock shafts journaled in the end upon opposite sides of the medial vertical plane of the base, vertically interlockable cam means carried by said lock shafts and cross-head, ands ring means carried by the cross-head to fbrm yielding abutments against upward movement of upper roller bearings.

U-shaped standards 12. A wringer comprising a base member having end standards, a cross-head member bridging said end standards, two U-shaped lock shafts journaled in the end standards upon opposite sides of the medial vertical plane of the base, vertically interlockable cam means carried by said lock shafts and cross head and releasable by downward movement of the medial portion of the look shafts from an intermediate position and associable by downward movement of the medial portion of the lock shaftfrom an upper position thereof, and spring means carried by the cross-head to form yielding abutments against upward movement of upper roller bearings.

13. A wringer comprising a base member having end standards, a cross-head member bridging said end standards, t'wo U-shaped lock shafts journaled in the end standards upon opposite sides of the medial vertical plane of the base, vertically interlockable cam means carried by said lock shafts and cross head, and a leaf spring mounted lengthwise within the cross head with its ends in a to form yielding abutments against position of the upper roller bear- 'shafts from an intermediate position and associable by downward movement of the medial portion of the lock shaft from an upper position thereof, and a leaf spring mounted lengthwise within the cross-head with its ends in a position to form yielding abutments against upward movement of the upper roller bearings.

In witness whereof, I have hereunto set my hand at Bloomington, Illinois, this 21st day of November, A. D. one thousand nine hundred and thirty-one.

EDWARD ENGEL. 

